CMake: Fix spelling of Embree passed to find package
CMake: Fix spelling of Embree passed to find package

The spelling and capitalization of package name passed to find_package()
and find_package_handle_standard_args() needs to match.

Silences CMake warning about mismatch.

Differential Revision: https://developer.blender.org/D8247

tangent-opensource/coreBlackbird,tangent-opensource/coreBlackbird,tangent-opensource/coreBlackbird